U-1929A rare Sinclair Aitken Patent FCS Argentina Sold

By Pablo Sueldo; posted February 12, 2026
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Hi everyone! This is a rare offer and scarse U-1929A porcelain Sinclair Aitken Patent insulator from the UK, but made for use in Argentina by the FCS (FerroCarril Sud or South Railway in english). Incuse marked "Bullers LTD. London Patent" on the front and FCS on the back. Comes with the original hard to find threaded inner skirt in the form of a porcelain pin which are usually missing (is in great condition), and also is incused "FCS". Measures 85mm (about 3 1/2") wide by 105 mm (about 4" tall). The price of this Mint insulator is $180 with shipping included to the USA. (I`m from argentina, not cover to remote areas, that might be a little extra charge). I can only accept PayPal in goods and services (because being latinamerican) so I may add 5% of fee charge. If you want more photos or videos just let me know. First e-mail gets it! also you can contact me on FB: Pablo Daniel Sueldo, we might have some friends in common!

SOLD!

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